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  1. #1
    Join Date
    Jun 2005
    Location
    New England
    Posts
    906
    I have a new gas FHA furnace, with direct-vent, etc. And so, outside my house, about 3' above the ground, is the exhaust vent. a 3" (or is it 4") open hole facing sideways coming out of my house.

    What's to keep a sorts of vermin from going inside? I don't run the system AT ALL in the summer. I know it's a sealed system, but what's to keep them from wandering into the hoses (and even the heat chamber), nesting, and leaving debris that will mess up the furnace when it fires up in the fall? Shouldn'i put some screening over it?

    Just curious.
    Thanks!
    /j

  2. #2
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,784
    A stainless steel mest, about 1/4 openings can be used.

    Is this still that over sized monster.
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  3. #3
    Join Date
    May 2006
    Location
    Las Vegas,Nevada
    Posts
    339
    I'm probably going to get busted for this but try that home improvment center and get one.DO NOT just go outside and piece something together!

  4. #4
    Join Date
    Jun 2005
    Location
    New England
    Posts
    906
    Thanks beenthere.

    Still the monster. Some good progress being made, but I'd rather not go public with it just yet. hopefully in a week or so.

    So window-screen & duct tape is a bad idea? You saying the Home Depot has something pre-made to cover it?

    thanks
    /j

    ACTUALLY - what I was thinking was this - take the lunar-module-like diffuser (or wahtever you call it) off the end, put some window screen over the pipe and slide the diffuser back on. It will also increase the friction holding the diffuser on (so it stops working itself off over time)

  5. #5
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,784
    The window screen will desintigrate quickly in the winter, and could cause ice to form on it, causing the furnace to stop working.

    Have more trouble with kids putting things in it, then with birds, or bees.
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  6. #6
    Join Date
    May 2006
    Location
    Las Vegas,Nevada
    Posts
    339
    Originally posted by jeffw_00
    Thanks beenthere.

    Still the monster. Some good progress being made, but I'd rather not go public with it just yet. hopefully in a week or so.

    So window-screen & duct tape is a bad idea? You saying the Home Depot has something pre-made to cover it?

    thanks
    /j

    ACTUALLY - what I was thinking was this - take the lunar-module-like diffuser (or wahtever you call it) off the end, put some window screen over the pipe and slide the diffuser back on. It will also increase the friction holding the diffuser on (so it stops working itself off over time)
    THIS IS WHY I SAID GO TO THE H DEPOT!!!!!!!!!Buy 1 that has the screen made in it.DO NOT TRY TO DESIGN ONE YUORSELF!!!!!

  7. #7
    Join Date
    Jun 2005
    Location
    New England
    Posts
    906
    oh - you're saying -replace- the diffuser with one with a built-in screen. OK.

    How likely is it that critters get into these things anyway?
    /j

  8. #8
    Join Date
    May 2004
    Posts
    1,462
    Beenthere is correct. Carrier says you should not put a cover of any kind over the outlet, the outlet must remain open. A cover will cause many more problems than it will prevent.
    If all else fails....Try reading the directions!

    Tell it like it is and let the chips fall where they may.

    Any views or opinions stated here are strictly my own.


  9. #9
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,784
    It happens, not too often, but when it does, its a pita.
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  10. #10
    Join Date
    Dec 2002
    Location
    Rochester, MN
    Posts
    5,305
    I have taken screen off on these things. they are more pain than good.

    The screen may frost over on a winter day where there is a lot of moister in the air, and the moist air will frost up on the cold screen.

    I have not come across anything going into the pipes.

    I have the Trane BAYVENT kit on mine.

  11. #11
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,784
    Originally posted by mayguy
    I have taken screen off on these things. they are more pain than good.

    The screen may frost over on a winter day where there is a lot of moister in the air, and the moist air will frost up on the cold screen.

    I have not come across anything going into the pipes.

    I have the Trane BAYVENT kit on mine.

    Yea, those things are great.

    Also keeps the kids from putting tennis balls in the vent.
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